Burning-in stand



Jan. 5 192s. 1,568,489

L. B. WHEELER I BURNlNG-IN STAND Filed July 24, 1924 INVENTOR.

Louie Beale Wheeler;

Patented Jan. 5, 1926.

LOUIEVIBEALEV WHEELER, or MEMPHIS, TENNESSEE.

BURNING-IN STAND.

Application filed July 24, 1924. Serial No. 727,988.

To all whom it mam concern:

Be it known that I, LOUIE BEALE WHEELER, a citizen of the United States,

residing at Memphis, in the county of Shelby and State of Tennessee,have invented certain new and useful Improvements in Burning-InStands,of which the following is a specification. i I

This invention relates to burning-in stands for supporting engine-blocksin position while the same are being worked upon.

The primary object ,ofthis invention is the provision, in a manner ashereinafter set forth, of a burning-in stand having means 7 whereby anengine block may be shifted to assume any position or angle to expeditework thereon, and further having means whereby the crank shaft may beplaced in position andpower applied thereto to revolve the same in ordertowear the bearings and other parts into proper shape,

a process known as burning-in, before the engine is replaced upon thechassis of the machine;

A further object of this invention is the provision, in a manner ashereinafter set forth, of a burning-in "stand for engine blocks, havingadjustable means for, supporting blocks of varying sizes.

A still further object of this invention is the provision, in a mannerashereinafter set forth, of a burning-in stand for motor blocks havingmeans whereby power can be applied to the stand tol operate the crankshaft and pistons belonging to the block towear the same in after thecylinders of the block have been bored. 7 a

A further and final object of this invention is thelprovision, in amanner as hereinafter set forth, of a burning-in stand for motorblocks,of neat construction, strong, durable, eflicient and inexpensive tomanufacture and install. p The invention will be best understood fromaconsiderati'onof the following de tailed description taken inconnection with the accompanying drawings forming a part of thisspecification, with the understanding that the invention is not confinedto any strict conformity with the showing of the drawings but may bechanged and modified' so long as such changes and modifications mark nomaterial departure from the salient features :of the invention asexpressed in the appended claims.

In the accompanying drawings: 7

Figure 1 is a side elevation of the device embodying this invention. a

Figure 2 is a top plan view of the same.

Figure 3 is an end elevation thereof.

Figure 4 is a central longitudinal sectional view through two associatedtubular stub shafts.

Figure 5 is a detailed perspectiy e view of one of said tubular stubshafts showing a motor block supporting arm formed integral therewith.

Figure 6 is a detailed side elevation of a bearing construction of oneof the pedestals.

Referring now to the drawings in detail wherein like numerals ofreference indicate corresponding parts throughout the several views, thedevice embodying this invention comprises a plurality of spacedsubstantially A-shaped supporting pedestals 1, 2 and 3, respectively,the lower portion of each pedestal being braced by a cross member 4 andhaving its lower terminal ends 5 vertical and parallel and furtherinturned to provide supporting feet 6. Each of the pedestals is providedat each side, at the point of joinder between the cross brace 4 and theupper portion of the vertical lower end 5 with a passage 7 designed toreceive therethrough the horizontally extending spaced parallel bars 8.These bars as shown retain the pedestals l, 2 and 3 in the proper spacedrelation. g

It will be seen that the pedestal 2 is located adjacent the end pedestal3 thus leaving the relatively wide space between the pedestals l and 2.Slidably mounted upon the parallel bars 8 in this space between the endpedestal 1 and the inner pedestal 2 is a shiftable support 9 oftriangular shape and substantially the same in contour as the pedestalexcept that the depending portion 5 and the feet 6 are absent, thissupport being designed to slide upon the bars 8 through the bearings 10located at the lower portion thereof. r

The longitudinally shiftable supporting member 9 and the bracket 1adjacent there- 'to each has a head 11 formed at the upper part thereof,and this head has an aperture therethrough, as indicated at 12, and isfurthersplit as at 13 having the laterally extending parallel spacedears 14 formed integral therewith, and secured together by means of thebolts 15. Each of the other two pedestals 2 and 3 has the upper portionthereof formed to provide a half bearing 16 over which a cooperatinghalf bearing 17 is positioned and secured by means of the bolts 18. Thebearings in the brackets 2 and 3 and the split bearings in the bracket 1and the member 9 are in alignment longitudinally of the frame as shown.

Extending through the bearings 11 are tubular revoluble collars 19 and20, respectively, each having the lower portion thereof extended as at21 and formed integral with a transversely extending bar 22 which isprovided with vertical through slots 23. As shown in Figure 4 theseextended lower portions 21 of each of the bearings 19 and 20 are inopposed relation one to the other and carry the transverse supportingbars in parallel spaced relation between the end bracket 1 and thesupporting member 9.

As stated, each of the bearings 19 and 20 is tubular to act as abearing, and'the bearing 19 in the headll of the pedestal member is ofgreater length than the bearing 20and extends beyond the head of thepedestal and has secured thereto a gear wheel 24-. Formed upon the outerside of the pedestal 1 is a pair of right angularly extending aperturedlugs 25 which constitute bearings for the shaft 26 of a crank 27. Thisshaft 26 carries thereon a worm 28 which, as shown, meshes with the gearwheel 2&.

It has been before stated that the supporting member 9 is shiftable uponthe bars 8 longitudinally of the structure, and when positioned a properdistance from the end bracket 1 an engine, indicated in dotted lines bythe numeral 29, may be supported between the member 9 and the bracket 1.Arms 30 may be bolted at their ends to the transverse supporting arms 22and extended inwardly across the face of the engine block to be securedthereto by bolts 30, to support the block between the transverselyextending arms. When the block 29 is thus suspended between the arms 22the same may be revolved to any desired angle by operating the crank 27to turn the gear wheel 24: which will revolve the shaft 19 and swing thetransverse member 22 carried thereby.

Supported in the bearings 16 is a shaft 31 carrying thereon a pair ofpulley wheels 32 one of which may be keyed to the shaft and the othermounted to idle thereon, and the inner end of the shaft 31 is formed toprovide the fork 33 adapted to coact with a similar fork 34 to provide,through the medium of the connecting pins 35, a universal joint. Theinner end of the fork 34 carries a shaft 36 which terminates in an opensleeve 37. This sleeve is directed toward the split bearing 11 of theshiftable supporting member 9.

lVhen the cylinders of the engine block 29 have been bored and it isdesired to bring about a perfect fit between the cylinder walls and thepistons which are to work therein, the crank shaft of the engine isplaced in position with its ends extending through the bearings providedby the bearings 19 and 20, and the inner end of the crank shaftis;engaged in the sleeve 37 of the shaft 36. A power belt may then bepassed about the pulleys 32 and power transmitted to the crank shaft towork the pistons in the cylinders while the block 29 is held in theproper position. The universal joint between the shafts 31 and 36 allowsfor any misalignment, and if desired, still another joint may be placedbetween the shafts if greater flexibility is desired.

From the foregoing description it may be seen that a burning-in stand isprovided which has novel features not heretofore found in stands of thistype, namely, the adjustability of the stand to take an engine block ofany size, the means for revolving the block to any angle to get to anypoint thereof, and the means for operating the crank shaft and otherelements of the block to wear the same into position, upon the standused to bore the block and hold the same for other work. Heretofore, ithas been necessary to shift the block from one stand to the other, thestand which holds the block in any desired. position for work thereonbeing so constructed that the block must be shifted to another stand forthe burning-in process. With this apparatus, when the block is once inposition, it is not moved from the stand until the job is finished.

Having thus described my invention. what I claim is:

1. The combination in an apparatus of the character set forth, of aseries of spaced supporting pedestals, connecting elements extendingtherebetween, a shiftable member slidable on said elements andcooperating with one of said pedestals for the support of an engineblock, a revoluble bearing upon the top of said member and cooperatingpedestal, means carried by each bearing to support an engine block atany desired angle upon revolution of one of said bearings, and meansassociated with one of said bearings for transmitting power thereto torevolve the same and the engine therewith.

2. The combination in an apparatus of the character set forth, of aseries of spaced supporting pedestals, means to provide a bearing uponthe top of each, connecting elements extending between said pedestals, asupporting member slidably carried upon said elements and formed toprovide a bearing at its top part, in alignment with said firstmentioned bearings, means carried by said member and one of saidpedestals for supporting anengine block, and a power transmittingelement mounted in the bearings of the other of said pedestals havingmeans for connection with a crank shaft supported above said block torevolve the shaft for burning-in the parts of the block.

3. The combination in an apparatus of the character set forth, of aseries of spaced supporting pedestals, means to provide a aring upon thetop of each, connecting elements extending between said pedestals,

a supporting member slidably carried upon said elements and formed toprovide a bearing in alignment with said first mentioned bearing and oneof said pedestals for supporting an engine block, a power shaft mountedin the bearings of the other of said pedestals, and means havinguniversal joint connection with said power shaft, to en age for rotationa crank shaft supported a ove said block to burn-in the parts thereof.

In testimony whereof, I affix my signature hereto.

LOUIE BEALE WHEELER.

